(19)
(11) EP 2 745 284 A1

(12)

(43) Date of publication:
25.06.2014 Bulletin 2014/26

(21) Application number: 12751650.8

(22) Date of filing: 02.08.2012
(51) International Patent Classification (IPC): 
G08C 19/02(2006.01)
(86) International application number:
PCT/US2012/049269
(87) International publication number:
WO 2013/025357 (21.02.2013 Gazette 2013/08)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 16.08.2011 US 201113210662

(71) Applicant: Rosemount Inc.
Chanhassen, MN 55317 (US)

(72) Inventors:
  • ARNSTON, Douglas, W.
    Maple Grove, MN 55311 (US)
  • RUD, Jason, H.
    Mayer, MN 55360 (US)

(74) Representative: Vossius & Partner 
Siebertstrasse 4
81675 München
81675 München (DE)

   


(54) TWO-WIRE PROCESS CONTROL LOOP CURRENT DIAGNOSTICS